Ditchburn, R W. <br/><br/>
Light / 

 - 3rd ed. 
 - London  Academic Press Inc.,U.S.,  1976 
 - 200 p. 
<br/><br/><label>ISBN: </label>0122181026 (paperback) | 9780122181023 (paperback) 
<br/><br/><label>Dewey Class. No.: </label>535 DIT